| Significance | Code | Meaning |
|---|
| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | AE | Control area (CTA) | | | CD | deactivated | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | N | For immediate attention of aircraft operators | | | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | A | Aerodrome information | | | E | En-Route information | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 085 | 8500 feet QNE | | | / | | | Centre Latitude | 5348N | 53° 48' North' | | Centre Longitude | 00144W | 1° 44' West | | Radius of area affected | 018 | 18 nautical miles |
| | LEEDS BRADFORD CONTROL AREA,CTR,AIR TRAFFIC ZONE DEACTIVATED,AERODROME CLOSED,NO AIR TRAFFIC CONTROL SERVICES AVAILABLE DUE TO ESSENTIAL RUNWAY MAINTENANCE.LEEDS BRADFORD CONTROLLED AIRSPACE REVERTS TO CLASS G.SUITABLY EQUIPPED AIRCRAFT WITHIN LEEDS BRADFORD AIRSPACE DURING THESE PERIODS SHOULD MONITOR LEEDS RADAR ON 134.580MHZ AND SQUAWK EITHER 2677,ANY DISCRETE TASK SPECIFIC CODE,OR ANY DISCRETE CODE ALLOCATED BY ANOTHER UNIT.MET OBSERVATIONS UNVERIFIED. |
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